Improvement in cooking-stoves



M. WOOLLEY. COOKING sToVE.

Patented July 7, 1868.

@uiten gisten stent @fitta Letters Pate-nt No. 79,619, dated July .7, 1868.

IMPROVEMENT IN COOKING-STOTBS.

@te Stimuli .referat tu in ttm ettsrs itmt mn mating part nf its stun.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, MILTON WOOLLEY, of Brooklyn, in the county of Kings, and State of New York, have invented certain new and useful Improvements on Stoves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to' the accompanying drawings, making a part of this specification, in which'- t Figure 1 is an elevation f the front ofthe improved stove with the doors closed.

Figure 2 is a section through the stove, taken in the-vertical plane indicated by red line y y in fig. 3.

Figure 3 is a section through the stove, taken in the vertical plane` indicated by red line :e: :ein tig. -1.

. Figure 4 is a horizontal section taken in tho plane'indicated by red line z z ing. 3.

Figure is a perspective view of the stove with its'front doors open, exposing the interior of the ovens and furnace. I

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to certain improvements on stoves which are adapted for cooking and warming purgposssgenerallly, and which have their furnaces or fire-chambers arranged within ovenfchambers, that are enclosed by double-wall flue-casings, so constructed thatA after the products of combustion leave' the tire-chambers, these Aproducts circulate between the said casing-walls, and are thereby conducted around the oven-chambers, and in this manner caused to give off large quantities ot heat before escaping into the main lues.

i My invention provides for having two ovens enclosed hyadoublewall flue-casing, and separated by a division-plate, which serves as a means for sustaining a. fire-box or furnace, and which is-constructed with registers and dempers, by means of which the two apartment-s can be made tocommunicate with each other, o r the communications closed, according to the dierent operations of cooking to be performed in either one or both of said apartments, as will be hereinafter explained. i

The invention further provides for heating air, to be used for warming apartments adjacent to that in which the stove is located, bykenclosing a double-wall flue-casing with o jacket, so as to leave an aircirculating space which will prevent, to a. considerable extent, the external radiation of heat from the Hue-casing, and thereby effect a utilization of fuel, aswillhe hereinafter described. y

The invention further provides for obtaining a direct outward draught from a furnace, which is arranged within aichamber enclosed by a double-wall fine-casing, and"also. for causingr the products of combustion to circulate throughout the due-space formed by said casing, when a direct draught is not desired, as will hehere-` inafter explained.

To-enable others skilled in the artitounderstand my invention, I will describe its construction and operation.

' The stove which I have represeiited in the drawings is of a rectangular form, and has two oven-chambers, arranged one above the other, and enclosed on ive sides by means of a double-wall Hue-casing, consisting oftwo walls, B C, put together in such manner as to leave a space between for thecirculation of the products of combastion on their way to the escape-ilue F. The front side ofthe oven-chamber is closed by' means of doors C Cl Cg C2, the upper two of which serve forclosingthe upper oven-chamber, and the lower two doors, C2 C2, serve to close the lower oven-chamber, vaslshown in figs. I, 3, and 5.

The two oren-*chambers are formed by means oi` the horizontal division-plate E, which has openings through it, provided with sliding valvese e, for the purpose of forming communications between the two oven-chambers, `and allowing these communications to be closed when the operation of cooking in an oven would interfere with the operation of cooking in the other oven. A

'lhe furnace I) is arranged beneath the division-plate E, and sustained hy it within the, lower oven, as shown in figs, 2, 3, and 5. This furnace is of-an oblong rectangular shape, and is provided with a. door', D', havingI a suitable register-opening 4for the admission of air beneath and in front of the grate d'. This grate rl extends back, and is supported by a stool at its rear end, and suspended by hooks at its front upturncd end, as shown. y

If it is desired to heat water for cooking or warming p rposes, a tire-back, consisting of a coilof pipe, d, may be arranged at the back part of the furnace, with branch-pipes leading from supply and receiving-reserveirs in any convenient manner. The coil ef'pipe is preferable to a hoxback, as the former will allow the products of combustion to pass freely between the coils. An opening, p, is made through the wall C, at the back of the furnace D, for allowing the products o f combustion to escape from this furnace into the flue-space F, between the two back walls B C. v

Dircctlyabove the furnace D, openingsare made through the division-plate E, for receiving vessels which it is desired toexpose to the direct action of the tire, which openings are provided with plates e e', like those usually applied to'the top plate of a commen cookingstove. l

The escape-fine F connects with a line, F', which extends down between the two back walls B C,` nearly to the bottom of the bottom-wall easing, and `wl'ric\h is provided near the top of the casing with a horizontal sliding damper, z', the rod z" of which is carried forward through thc front part of the casing, so that said damper can be 'operatedfrom this point. When it is desired to leave a direct draught from the furnace to the escape-flue, the

damper is drawn forward, and a direct communication thus established, and when it is desired to conduct the products of combustion throughout the entire fine-space enclosed between the walls B C, the said damper is closed, asl shown in iig. 3. i

When damper i is closed, the products of combustion are carried downward to the bottom ofthe hue-casing, thence forward between the two converging plates jj, thence outward from the centre to the sides of the casing, thence upward to the top of the casing, thence to the front of a narrow channel formed by the plates l l, and finally into the liuc F, above the damper z'. C lhe communication between flue F and the channel, which is formed by plates Z l, is madel through the 4upper'end of theilue F', just above the damper t', as shown in fig. 3.

It will be seen from the above .description that when damper s' is shut, the products of combustion will b e caused Vto circulate lthrough all the spaces between thc walls B C, before escaping into finer F, thereby com' munieating a large amount of heat to the oven-chambers, besides the heat which is radiated from the walls of the furnace .And not only is there a saving of heat by'causing the products of combustion to circule-te throughout the entire Hue-space' between the casing-walls, but this space will prevent large quantities of heat being radiated from the oven.

Through the top walls ofthe duecasing,'pipes g g and h pass.. i The pipe r leads to th fiue F through pipe h', and is designed for carrying off vapors and smoke which riso in the oven-chambers while cooking, and .the

' pipes g g lead into a central pipe, g, for conducting heated air to apartments above. Both ppesg" and 7L are provided with dampersvur valves for regulating or preventing the escape of heated air and vapor from the ovenchamber or chambers.

The drawings represent the {lue-casing B C encl'osed'within a jacket, A, which forms a space between it .and the wall B of the said casing for the circulation and heating of air to be conducted olf by way of pipes ggg', or otherwise, and used for warming apartments above or adjoining that in which the stove is located.

.This'jack'et also retains much of the heat within the due-space of thccasing, and also within the ovenchambers, which would be radiated from the external wall Bl if the jacket were not used.

If desirsble,'the jacket A may be made so 4that it can be'removed from thestovc when not required.`

By xy invention Iprovdea stove,'o`r what I'. prefer 'to denominate a. kitchen cabinet, with an enclosing non-conducting fine-casing, and dividcthe chamber, which is enclosed by this casing and its doors, into two apartments, with the furnace located in the lower apartment, and sustained by the division-plate E. I also provide-for having the two apartments communicate with each otherso that there shall be a circulation of heated nir in them; and while Athis is the case, I am enabled also to c los'e said communications, so that the operation of cooking in oneapartm'ent shall not interfere with the operation of cooking in the other.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The flue-casing B C, provided wjth a direct-draught damper, i, and enclosing even-chambers, which are. separated by a horizontal plate E, having a furnace, D, and valve-openings applied tov it, substantially as described.`

2. Oven-chambers, which are enclosed by v,a fine-casing, B C, and doors C C, and provided .with a furnace, D, valves ce, and means for conducting o the vvapors and gases rising in said 'oven-chambers, substantially as described. I

3. The outer jacket A, in combination with' a furnace, D, and division-plate E, arranged within a doublewall ilus-casing, substantially as described.

4. The water-heater d, appliedwithin a furnace, D, which is sustained by a divisien-plate,`E, within a, double-wall tiue'icasing, B O, substantially as described.

- MILTON WOOLLEY.

Witnesses:

W. H. Honoris, HENRY L. DIKEMAN. 

